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Chemistry · 2023
Qualitative Salt Analysis

JEE Main · 25 January 2023, Shift 1 · Q50

Match the List-I with List-II: Correct match is -

Match the List-I with List-II :
List-IList-II
CationsGroup reagents
$\displaystyle \mathrm{A} \rightarrow \mathrm{Pb}^{2+}, \mathrm{Cu}^{2+}$i) $\displaystyle \mathrm{H}_2 \mathrm{~S}$ gas in presence of dilute HCl
$\displaystyle \mathrm{B} \rightarrow \mathrm{Al}^{3+}, \mathrm{Fe}^{3+}$ii) $\displaystyle \left(\mathrm{NH}_4\right)_2 \mathrm{CO}_3$ in presence of $\displaystyle \mathrm{NH}_4 \mathrm{OH}$
$\displaystyle \mathrm{C} \rightarrow \mathrm{Co}^{2+}, \mathrm{Ni}^{2+}$iii) $\displaystyle \mathrm{NH}_4 \mathrm{OH}$ in presence of $\displaystyle \mathrm{NH}_4 \mathrm{Cl}$
D → $\displaystyle \mathrm{Ba}^{2+}, \mathrm{Ca}^{2+}$iv) $\displaystyle \mathrm{H}_2 \mathrm{~S}$ in presence of $\displaystyle \mathrm{NH}_4 \mathrm{OH}$
Correct match is -
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.